diff --git a/mail_tracking_mailgun/tests/test_mailgun.py b/mail_tracking_mailgun/tests/test_mailgun.py
index f56285023..835be391d 100644
--- a/mail_tracking_mailgun/tests/test_mailgun.py
+++ b/mail_tracking_mailgun/tests/test_mailgun.py
@@ -2,7 +2,7 @@
 # Copyright 2017 Tecnativa - David Vidal
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-import mock
+from unittest import mock
 
 from odoo.exceptions import UserError, ValidationError
 from odoo.tests.common import TransactionCase